Satin Suite (1979)

Two brunette white girls in their 20s take center stage in this bedroom threesome. Both slim with short hair, they get passed back and forth by a muscular guy in his 30s. The camera gets in close, showing off her long nails and the way she grips his chest hair. Intimate poses everywhere — standing embraces, couch action, and plenty of time on the bed with the pillows and soft lighting setting the mood. One girl spends a lot of time on her knees, really working it while the other watches and joins in.